http://en.wikipedia.org/wiki/Black_body
Eventhough it's called a black-body, most macroscopic objects can be considered blackbodies and high temperature objects even more so. The idea is that light radiated from an object (as opposed to reflecting off an object) is related to it's thermal energy. An object is 'black' only at zero degress. At any finite temperature, it emits a spectrum of light that is dependant on the temperature.
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And if you say to me tomorrow, oh what fun it all would be.
Then what's to stop us, pretty baby. But What Is And What Should Never Be.
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